ASTM International

Standard Test Method for Monomethyl Ether of Hydroquinone in Colorless Monomeric Acrylate Esters and Acrylic Acid
 N D3125

Annotation

This test method covers the determination of monomethyl ether of hydroquinone2 (MEHQ) in colorless monomeric acrylate esters and acrylic acid. The test method is applicable to the determination of MEHQ in the concentration range from 0 to 1200 parts per million.

For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off "to the nearest unit" in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29.

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

For hazard information and guidance, see the supplier's Material Safety Data Sheet.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of whoever uses this standard to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2 IUPAC-approved name is 4-methoxyphenol.

*A Summary of Changes section appears at the end of this standard

Автоматический перевод:

Метод стандартной пробы для монометилового эфира гидрохинона в бесцветных мономерных сложных эфирах акрилата и акриловой кислоте